Antonia earns $6 per hour helping her grandmother. How many hours does she need to work to earn $48?

Which linear equations have an infinite number of solutions? check all that apply.  (x  –  3/7)  =  2/7(3/2x  –  9/14)8(x  +  2)  =  5x  –  1412.3x  –  18  =  3(–6  +  4.1x)(6x  +  10)  =  7(x  –  2)4.2x  –  3.5  =  2.1 (5x  +  8)

What is the sum of these mixed numbers 2 1/8 + 4 3/8

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base